--- libaitio/src/exec.c	2013/12/06 01:03:05	1.1.2.11
+++ libaitio/src/exec.c	2013/12/08 21:11:54	1.1.2.16
@@ -45,6 +45,7 @@ io_progInit(const char *progName, u_int initNum, u_int
 	}
 
 	pthread_mutex_init(&prg->prog_mtx, NULL);
+	signal(SIGPIPE, SIG_IGN);
 
 	if (io_progOpen(prg, prg->prog_inin) < 0) {
 		io_progDestroy(&prg);
@@ -70,6 +71,7 @@ io_progDestroy(prog_t ** __restrict pprg)
 	e_free((*pprg)->prog_used);
 	array_Destroy(&(*pprg)->prog_fds);
 	pthread_mutex_destroy(&(*pprg)->prog_mtx);
+	signal(SIGPIPE, SIG_DFL);
 
 	e_free(*pprg);
 	*pprg = NULL;
@@ -87,6 +89,7 @@ io_progClose(prog_t * __restrict prg, u_int closeNum)
 {
 	register int i;
 	int ret = 0;
+	struct tagPIOPID *p;
 
 	if (!prg)
 		return 0;
@@ -98,8 +101,17 @@ io_progClose(prog_t * __restrict prg, u_int closeNum)
 	pthread_mutex_lock(&prg->prog_mtx);
 	for (i = array_Size(prg->prog_fds) - 1; 
 			(closeNum ? ret < closeNum : 42) && i > -1; i--)
-		if (array_Get(prg->prog_fds, i)) {
+		if (array_Get(prg->prog_fds, i) && 
 #ifdef POPEN_STREAM
+				(p = pio_pgetpid(array(prg->prog_fds, i, FILE*)))) {
+#else
+				(p = pio_pgetpid((int) array(prg->prog_fds, i, intptr_t)))) {
+#endif
+			kill(p->pid, SIGTERM);
+			usleep(1000);
+			if (waitpid(p->pid, &p->stat, WNOHANG) > 0)
+				kill(p->pid, SIGKILL);
+#ifdef POPEN_STREAM
 			e_pclose(array(prg->prog_fds, i, FILE*));
 #else
 			e_pclose((int) array(prg->prog_fds, i, intptr_t));
@@ -115,6 +127,52 @@ io_progClose(prog_t * __restrict prg, u_int closeNum)
 }
 
 /*
+ * io_progCloseAt() - Close program at pool of certain position
+ *
+ * @prg = program pool
+ * @idx = index at pool
+ * return: 0 error or !=0 closed program
+ */
+int
+io_progCloseAt(prog_t * __restrict prg, u_int idx)
+{
+	int ret = 0;
+	struct tagPIOPID *p;
+
+	if (!prg)
+		return 0;
+	if (idx > prg->prog_maxn) {
+		io_SetErr(EINVAL, "Requested number for close program is over pool's limit");
+		return 0;
+	}
+
+	pthread_mutex_lock(&prg->prog_mtx);
+	if (array_Get(prg->prog_fds, idx) && 
+#ifdef POPEN_STREAM
+			(p = pio_pgetpid(array(prg->prog_fds, idx, FILE*)))) {
+#else
+			(p = pio_pgetpid((int) array(prg->prog_fds, idx, intptr_t)))) {
+#endif
+		kill(p->pid, SIGTERM);
+		usleep(1000);
+		if (waitpid(p->pid, &p->stat, WNOHANG) > 0)
+			kill(p->pid, SIGKILL);
+#ifdef POPEN_STREAM
+		e_pclose(array(prg->prog_fds, idx, FILE*));
+#else
+		e_pclose((int) array(prg->prog_fds, idx, intptr_t));
+#endif
+		array_Del(prg->prog_fds, idx, 0);
+		clrbit(prg->prog_used, idx);
+		prg->prog_cnum--;
+		ret++;
+	}
+	pthread_mutex_unlock(&prg->prog_mtx);
+
+	return ret;
+}
+
+/*
  * io_progOpen() - Execute number of program(s)
  *
  * @prg = program pool
@@ -159,6 +217,7 @@ io_progOpen(prog_t * __restrict prg, u_int execNum)
 				break;
 			} else
 				array_Set(prg->prog_fds, i, f);
+			clrbit(prg->prog_used, i);
 			prg->prog_cnum++;
 			ret++;
 		}
@@ -201,6 +260,7 @@ io_progVacuum(prog_t * __restrict prg, u_int toNum)
 {
 	register int i;
 	int ret = 0;
+	struct tagPIOPID *p;
 
 	if (!prg)
 		return 0;
@@ -213,10 +273,20 @@ io_progVacuum(prog_t * __restrict prg, u_int toNum)
 
 	pthread_mutex_lock(&prg->prog_mtx);
 	for (i = array_Size(prg->prog_fds) - 1; prg->prog_cnum > toNum && i > -1; i--)
-		if (array_Get(prg->prog_fds, i) && isclr(prg->prog_used, i)) {
+		if (array_Get(prg->prog_fds, i) && isclr(prg->prog_used, i) && 
 #ifdef POPEN_STREAM
+				(p = pio_pgetpid(array(prg->prog_fds, i, FILE*)))) {
+			kill(p->pid, SIGTERM);
+			usleep(1000);
+			if (waitpid(p->pid, &p->stat, WNOHANG) > 0)
+				kill(p->pid, SIGKILL);
 			e_pclose(array(prg->prog_fds, i, FILE*));
 #else
+				(p = pio_pgetpid((int) array(prg->prog_fds, i, intptr_t)))) {
+			kill(p->pid, SIGTERM);
+			usleep(1000);
+			if (waitpid(p->pid, &p->stat, WNOHANG) > 0)
+				kill(p->pid, SIGKILL);
 			e_pclose((int) array(prg->prog_fds, i, intptr_t));
 #endif
 			array_Del(prg->prog_fds, i, 0);
@@ -232,10 +302,11 @@ io_progVacuum(prog_t * __restrict prg, u_int toNum)
  * io_progCheck() - Check exit status of program pool
  *
  * @prg = program pool
+ * @re = resurrect program
  * return: -1 error or >-1 exited programs
  */
 int
-io_progCheck(prog_t * __restrict prg)
+io_progCheck(prog_t * __restrict prg, int re)
 {
 	int ret = 0;
 	struct tagPIOPID *p;
@@ -254,10 +325,21 @@ io_progCheck(prog_t * __restrict prg)
 #endif
 			if (waitpid(p->pid, &p->stat, WNOHANG) > 0) {
 				clrbit(prg->prog_used, i);
+#ifdef POPEN_STREAM
+				e_pclose(array(prg->prog_fds, i, FILE*));
+#else
+				e_pclose((int) array(prg->prog_fds, i, intptr_t));
+#endif
+				array_Del(prg->prog_fds, i, 0);
+				prg->prog_cnum--;
 				ret++;
 			}
 	pthread_mutex_unlock(&prg->prog_mtx);
 
+	/* resurrect */
+	if (re && ret > 0)
+		io_progOpen(prg, ret);
+
 	return ret;
 }
 
@@ -265,6 +347,7 @@ io_progCheck(prog_t * __restrict prg)
  * io_progAttach() - Attach to open program
  *
  * @prg = program pool
+ * @newOne = Execute new one program after attach
  * return: NULL error or !=NULL attached program handle
  */
 #ifdef POPEN_STREAM
@@ -272,7 +355,7 @@ FILE *
 #else
 int
 #endif
-io_progAttach(prog_t * __restrict prg)
+io_progAttach(prog_t * __restrict prg, int newOne)
 {
 #ifdef POPEN_STREAM
 	FILE *f = NULL;
@@ -300,6 +383,10 @@ io_progAttach(prog_t * __restrict prg)
 			break;
 		}
 	pthread_mutex_unlock(&prg->prog_mtx);
+
+	/* execute new one program */
+	if (newOne && f)
+		io_progOpen(prg, 1);
 
 	return f;
 }